<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>行内元素和块元素</title>
</head>

<body>
<!-- 行内元素 -->
<a href="https://www.baidu.com">百度一下</a>
<strong>这是粗体</strong>
<jianguo>sadkjsadknkas</jianguo>
<jianguo>sadkjsadknkas</jianguo>
<jianguo>sadkjsadknkas</jianguo>

<!-- 块元素 -->
<div>1
    <span>这是一句话</span>
    <span>这是第二句话</span>
    <p>
        hksakdjk
    </p>
</div>
<p>1</p>
<p>1</p>
<p>1</p>
</body>

</html>